14 INCH WIND TURBINE AGAINST THE 14 BY 14 INCH ENERGY PROPHECY :Wind Turbine 2.7 to 1 gear ratio ,Wind Speed 5 MPH Volts 0 would not turn ,Wind Speed 8 MPH Volts 2.5 Danger turning to fast ,Wind Speed 12 MPH Volts 3.3 flying apart had to shut it down. :Energy Prophecy 2.7 to 1 gear ratio ,Wind Speed 5 MPH Volts .3 gear ratio level to low ,Wind Speed 8 MPH Volts .5 turned fast, but little energy created ,Wind Speed 12 MPH Volts .5 The Energy prophecy only turns so fast. :Wind Turbine 6 to 1 gear ratio ,Wind Speed 5 MPH Volts 0 would not turn ,Wind Speed 8 MPH Volts .6 barely turned ,Wind Speed 12 MPH Volts 2.5 Wind turbine preformed very well :Energy Prophecy 6 to 1 gear ratio ,Wind Speed 5 MPH Volts .6 gear ratio level a little to low ,Wind Speed 8 MPH Volts 1.0 gear ratio level a little to low ,Wind Speed 12 MPH Volts 1.2 gear ratio level a little to low :Wind Turbine 10 to 1 gear ratio ,Wind Speed 5 MPH Volts 0 would not turn ,Wind Speed 8 MPH Volts 0 would not turn ,Wind Speed 12 MPH Volts 0 to much torque to handle test over :Energy Prophecy 10 to 1 gear ratio ,Wind Speed 5 MPH Volts .6 gear ratio level a little low ,Wind Speed 8 MPH Volts 1.2 gear ratio level a little low ,Wind Speed 12 MPH Volts 1.7 gear ratio level a little low :Wind Turbine 13 to 1 gear ratio ,to much torque to handle test over :Energy Prophecy 13 to 1 gear ratio ,Wind Speed 5 MPH Volts 1.0 not bad in 5MPH winds ,Wind Speed 8 MPH Volts 1.2 gear ratio level a little low ,Wind Speed 12 MPH Volts 1.7 gear ratio level a little low :Wind Turbine 30 to 1 gear ratio ,to much torque to handle test over :Energy Prophecy 30 to 1 gear ratio ,Wind Speed 5 MPH Volts 0 would not turn ,Wind Speed 8 MPH Volts 3.4 preformed very well ,Wind Speed 12 MPH Volts 4.5 fanatic, more torque please 30 to 1 gear ratio is as high as I could go with out ordering more parts. ackerman18